Cannot click "No thanks" on the new "Let's update your email settings"

So, I just opened up Bitbucket web, and I got a popup saying:

Let's update your email settings

Would you like to receive news and offers from Atlassian about products, events, and more?

[Yes, please] [No, thanks]

So, I click [No, thanks] - and there is no reaction whatsoever, the pop-up remains where it is. Obviously, I'm not going to click [Yes, please] just to see if it will react on that choice. Browser: Firefox 60.0.1 (64-bit), Windows 7 Enterprise